[jira] [Closed] (CALCITE-2569) UDFs that are table functions must implement SqlTableFunction and have CURSOR as their return type

["Andrei Sereda (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-2569?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrei Sereda closed CALCITE-2569.
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Released as part of 1.25 ([68b02dfd4af15bc|https://github.com/apache/calcite/commit/68b02dfd4af15bc94a91a0cd2a30655d04439555])

> UDFs that are table functions must implement SqlTableFunction and have CURSOR as their return type
> --------------------------------------------------------------------------------------------------
>
>                 Key: CALCITE-2569
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2569
>             Project: Calcite
>          Issue Type: Bug
>            Reporter: Julian Hyde
>            Assignee: Julian Hyde
>            Priority: Major
>             Fix For: 1.25.0
>
>
> UDFs that are table functions must implement SqlTableFunction and have CURSOR as their return type,
> Validate that table functions are not used in contexts that require scalar functions, such as the SELECT clause.
> Change operand type ANY to mean 'scalar expression of any type (but not a cursor)', and add operand type IGNORE to mean skip validation - for an operand that is not an expression. TABLE is one of the few operators that accepts a CURSOR operand.



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